FTXUI

In order for applications to receive all keyboard inputs, including the
Ctrl-C and Ctrl-Z, the raw input mode has been enabled. As result the
SIGINT will no longer be used, instead the keyboard Ctrl-C event is used
for exiting the framework, but only if no components has made use of it.

Co-authored-by: Jørn Gustav Larsen <jgl@fasttracksoftware.com>
Co-authored-by: ArthurSonzogni <sonzogniarthur@gmail.com>